化学除磷对沸石强化AO工艺运行的影响成官文

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AO成官文1, 吴志超2, 章非娟2, 周 军2(1.桂林工学院资源与环境工程系,广西桂林541004;2.同济大学污染控制与资源化研究国家重点实验室,上海200092)   : 中试结果表明,化学除磷对沸石强化AO生物脱氮工艺具有双重作用:一方面,化学—生物协同作用除磷效果好(能去除80%~90%的磷),对COD的去除和氨氮的硝化没有影响;另一方面,化学—生物协同作用可改善污泥的粒径分布,提高活性污泥的絮凝和沉降性能,但同时也会增加污泥产率,抑制微型动物的增殖和代谢、影响出水的SS值,而混合投加铝盐和亚铁盐进行除磷时能减少或消除单独投加铝盐或亚铁盐带来的不良影响。  : 城市污水; 化学除磷; AO脱氮工艺; 沸石:X703.1  :A  :1000-4602(2003)13-0017-04EffectofChemicalPhosphorusRemovalonZeoliteEnhancedAOBiologicalNitrogenRemovalProcessCHENGGuan-wen1, WUZhi-chao2, ZHANGFei-juan2, ZHOUJun2(1.DeptofResourceandEnvironmentalEngineering,GuilinInstituteofTechnology,Guilin541004,China;2.StatekeyLabofPollutionControlandResourceReuse,TongjiUniversity,Shanghai200092,China)  Abstract: ThepilottestresultshowedthatchemicalphosphorusremovalhasdoubleeffectsonzeoliteenhancedAObiologicalnitrogenremovalprocess.ontheonehand,bio-chemicalsynergisticactionhasgoodeffectinphosphorusremoval(upto80%~90%),andhasnoinfluenceonCODre-movalandnitrificationofammonianitrogen;ontheotherhand,bio-chemicalsynergisticactionhasthefunctionofimprovingparticlesizedistributionofsludgeandenhancingflocculationandsettleabilityofsludge;however,itwillalsoincreasesludgeyieldandinhibittheproliferationandmetabolismofmi-croorganism,andthusaffectingtheeffluentSS.Dosingofcombinedaluminumsaltsandferroussaltsisabletoreduceoreliminateunfavorableinfluencewhichiscausedbyseparatedosingofaluminumsaltsorferroussalts.  Keywords: municipalwastewater; chemicalphosphorusremoval; AOnitrogenremovalpro-cess; zeolite  :1 中试装置与运行参数① 。,pH6.7~7.2,COD73~333mgL,11.89~55.43mgL,TP1.25~8.90mgL,SS56~266mgL。·17·   2003Vol.19          CHINAWATER&WASTEWATER          No.13② AO,0.5m×1.5m×8m,A2,O,。③ AO—。A、OO(O,、,O)。Al2(SO4)3·12H2OFeSO4·7H2O。5:A60mgLAl2(SO4)3·12H2O、A30mgLFeSO4·7H2O、O30mgLFeSO4·7H2O、O(20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O)A(20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O)。④ 1.2m3h,HRT5h(A1.25h,O3.75h),100%,200%,30d。1MLSS8.80~13.2gL,5~6gL;2MLSS6.6~8.7gL,3~4gL。⑤ COD、NH3-N、NO-3-N、NO-2-N、TP、SS;、;:AO10mL90mL,0.5h,。,28~30℃20dMPN,Griess,,;37℃10dMPN,,;,MPN。2 结果与讨论2.1 ① COD()COD166mgL,AO1COD34mgL,79.5%;2COD33mgL,80.1%。,COD≥80%,,COD。② 20021015—200313(30~-4℃,8.5℃)。()TP3.18mgL,1、2TP3.02、3.14mgL,TP5.03%、1.26%,;,TP80%,TP,。()23.81mgL,AO16.06mgL,74.5%;24.43mgL,81.4%;3~4gL25~6gL1。,1A,80%。、,。A,O。③ SS,SS,12SS30mgL,,12,,SS。,SSSS。1SS10~30μm,SS(),SS;2SS10μm,SS(),SS。④ (1),,,(GB18918—2002B)110,。·18·2003Vol.19                              No.131  104L、GB18918—2002170002401101101301(B)  ⑤ ,AO,,;,。2.2 AO① :,;、ζ,,。O3000,110μm,210~30μm,70μm5%;60mgLAl2(SO4)3·12H2O,,110μm,210~30μm,10μm,10~70μm;30mgLFeSO4·7H2O,,10μm,10~150μm,150μm;45mgLFeSO4·7H2O,10μm,30~150μm,150μm。:①;②,;,;③,。,,。② ,MLSS,,SV,1SV,2;1SVI(SVI100mLg),,2SVI100mLg,1。1,,21,。③ 、,12O,,。,;,,;,。,。,20mgLFeSO4·7H2O30mgLAl2(SO4)3·12H2O,1、20.039、0.038kgMLSSkgCOD(),19.3%、27.1%。2.3 ① ,。(2),12、、。60mgLAl2(SO4)3·12H2O12、,;30mgLFeSO4·7H2O,12,、;,12、、。② 。1,(V.campanula)、(V.microstoma)、(Epistylis)、(Opercularia)、(Zoothamnium)、(Carchesium)、(Aspidisa),(Arcellavulgaris)、·19·2003Vol.19                              No.13(Lionotus)、(Colpidium)、(Copo-da),(Philodinasp.)。21,。,1;2、。。1,;2、、。。2              gVSS12AOAO20028172002912200292820021119200212136.30×1093.63×1072.30×1082.85×1083.26×1081.09×1091.78×1098.56×1068.56×1081.35×1097.70×1062.92×1086.04×10101.01×1071.01×1092.78×1095.57×1063.53×1085.97×1096.18×1071.11×1081.04×1095.71×1075.71×1071.41×10108.35×1078.35×1076.67×1092.66×1071.26×108200312020033141.97×1099.32×1071.55×1082.10×1099.94×1079.94×1075.32×1091.38×1081.60×1082.49×1091.48×1081.48×1083 结论① ,AOCOD。② AO,。,,;,,;,。,。SVSVI,,SVSVI。③ ,、,,;。④ AOSS,SSSS;,;;。⑤ 、,。:[1] ,.,,.[M].:,1990.[2] MogensHenze,PoulHarremoës,JeslaCourJansen,etal.[M].:,1999.[3] ,,,.[M].,2000,18(5):28-29.:(0773)5896362:2003-07-29本期责任编辑: 江 荣   编辑: 衣春敏 孔红春·20·2003Vol.19                              No.13

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